                            :flow/to (gen/return nil))]
        (gen/fmap #(merge v %) g)))))
 
+(defn maybe-predicate [g]
+  (gen/frequency
+   [[1 (true-flow-condition-gen g)]
+    [1 (false-flow-condition-gen g)]]))
+
 (deftest nil-flow-conditions
   "No flow condition routes to all downstream tasks"
   (let [downstream [:a :b]

         results (t/route-data event nil nil flow-conditions downstream)]
     (is (= (into #{} (:flow/to (first true-1))) (into #{} (:flow results))))
     (is (nil? (:action results))))))

    (gen/vector (->> :a
                     (flow-condition-gen)
                     (flow-to-tasks-gen)
                     (maybe-predicate)))]
   (let [flow-conditions (into (into (into false-1 true-1) false-1) mixed-1)
         downstream (mapcat :flow/to flow-conditions)
         compiled (c/compile-fc-norms flow-conditions :a)
